Railroad Archives Online
- CollectionD0011 - James M. Fredrickson Collection
- Series004 - Northern Pacific Railroad Company
- Subseries Level 1014 - Photographs
- Subseries Level 2001 - Railroads--Equipment and Supplies
- Subseries Level 3002 - Diesel locomotives
- 387 more...
- ItemJMF03-02216.1 - Northern Pacific diesel locomotive number RCU1 at Livingston, Montana, in 1972.
- ItemJMF03-02217.0 - Northern Pacific diesel locomotive number 2520 at Auburn, Washington, in 1968.
- ItemJMF03-02218.0 - Northern Pacific diesel locomotives numbers 5403 and 2510 at Auburn, Washington, in 1967.
- ItemJMF03-02218.1 - Northern Pacific diesel locomotives numbers 5403 and 2510 at Auburn, Washington, in 1967.
- ItemJMF03-02218.2 - Northern Pacific diesel locomotives numbers 5403 at Auburn, Washington, in 1967.
- ItemJMF03-02219.0 - Northern Pacific diesel locomotive number 100 at Auburn, Washington, in 1970.
- ItemJMF03-02220.0 - Northern Pacific diesel locomotive number 6509 at Tacoma, Washington, in 1967.
- ItemJMF03-02221.0 - Northern Pacific diesel locomotive number 2506 at Auburn, Washington, in 1968.
- ItemJMF03-02222.0 - Northern Pacific diesel locomotive number 418 at Auburn, Washington, in 1968.
- 253 more...